Synonyms for spectral

Adjective

1. spectral

usage: of or relating to a spectrum; "spectral colors"; "spectral analysis"

2. apparitional, ghostlike, ghostly, phantasmal, spectral, spiritual, supernatural (vs. natural)

usage: like or being a phantom; "a ghostly face at the window"; "a phantasmal presence in the room"; "spectral emanations"; "spiritual tappings at a seance"